4vsar.ru

https://4vsar.ru· First analyzed 18 May 2026· Updated 18 May 2026

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4vsar.ru

Mobile

Sponsored

Hosting Provider

Ddos-guard LTD

IP Address

185.178.208.145

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Rostov-on-Don, Russia

ASN

AS57724

Organization

Ddos-guard LTD

Server

ddos-guard

Nameservers

ns1.ihc.ru.ns2.ihc.ru.

Performance

Core Web Vitals

Weight

First Contentful Paint

706 ms10%

Speed Index

918 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.1 MB

107 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Ddos-guard LTD

Technology Stack

6 Technologies Detected

Libraries

UI Components

CSS Frameworks

Fonts

Languages

SEO Analysis

C62/100

Meta Tags7/15

Content12/12

Headings6/8

Technical15/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

4vsar.ru4vsar.ru

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Title truncated. Description truncated.

Title Length91 chars

Recommended: 50-60 chars (~562px / 580px)

Description Length254 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (91 chars, ~562px). Will be truncated in search results.

11 issues found

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Crawlability

Sitemap

Type: standard

3,781 URLs

robots.txt

33 rules

Sitemap reference found

Local SEO

Local Search Readiness

5/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

0/25

Citation

12/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:18%

Words:2,304

Token eff.:Optimal

Sections/1K:35.2

Structured Data

No Schema

Citation Readiness

Opening Summary65w

Descriptive Headingsavg 9.6w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

51/100

Passed

Critical

Warnings

Images & Alt Text

10/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

13/100

393 mg

CO₂e / view

3.1 MB

Page Weight

30%

Cleaner Than

New Visitor

449 mg

Returning (cached)

224 mg

Annual (10K/mo)

47.1 kg

Emission Segments

Data Center

88 mg

Network

94 mg

Device

211 mg

Resource Breakdown

JavaScript

426.0 KB

Images

2.6 MB

CSS

72.4 KB

Fonts

1.8 KB

HTML

20.6 KB

Other

707 B

Green Hosting Not Verified

Ddos-guard LTD

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

69d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.04.2026

Valid Until

27.07.2026

Subject Alternative Names (2)

4vsar.ruwww.4vsar.ru

SHA-256 Fingerprint

5C:F2:87:91:D1:11:F7:3C:90:AA:63:66:8A:39:93:33:9F:59:4D:BE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests;

content-type

text/html; charset=windows-1251

date

Mon, 18 May 2026 23:23:07 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.4vsar.ru

Domain Information

4vsar.ru

Domain Age

16y 9m

Created

27.07.2009

Expires

27.07.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

54/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto Slab + PT Sans

WCAG Partial

58/100

Readability

/30

12/30

11px · LH 1.20

Hierarchy

/20

10/20

0.91x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

Roboto Slab

Sans10px

Body Font

PT Sans

Sans11px

Contrast Ratio

1:1

16 issues

Reading Comfort

~39 CPL

Narrow lines

10px

24px

18px

11px

Golden Ratio

Scale

❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts

Color Palette

14 unique colors

18.93:1 AAA Light

#ffffff

Primary· 14.799999999999999%

#10110f

Text· 6.2%

#1573ab

Primary· 13.700000000000001%

#433228

Secondary· 8.2%

#81885d

Secondary· 7%

#bc2021

Accent· 6.4%

#7b6950

Secondary· 6.3%

#aa9d82

Secondary· 6.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)an.yandex.ru(1)mc.yandex.ru(1)ajax.googleapis.com(1)yandex.ru(1)

Website Identity

4vsar.ru

[email protected]

16 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RU

Social Profiles

Facebook X (Twitter)

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Last analyzed: 18 May 2026 at 23:23

Historical Analysis & Change Tracking